Home / 389,202.57-537,102.70-217,114.83

Finding the Fourth Proportional to 389,202.57, 537,102.70 and 217,114.83

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Solution

The fourth proportional to 389,202.57, 537,102.70 and 217,114.83 is: 299,620.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,202.57 : 537,102.70 = 217,114.83 : x
  2. Step 2: Convert to fraction form
    389,202.57/537,102.70 = 217,114.83/x
  3. Step 3: Cross multiply
    389,202.57x = 537,102.70 × 217,114.83
  4. Step 4: Simplify right side
    389,202.57x = 116,612,960,860.25
  5. Step 5: Solve for x
    x = 116,612,960,860.25/389,202.57
  6. Step 6: Final answer
    x = 299,620.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.